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No.19 Lin YoujiaA TCP connection is a quad, and a connection is uniquely determined by the source IP, the source port, the destination IP and the destination port. Therefore, if C wants to forge the packet from A to B, it should fill in the above-mentioned IP header and TCP header with the source IP, source port, target IP and target port. Here B is the server, IP and port are open, A is the target we want to attack, IP certainly knows, but the source port of A is not clear, because it may be randomly generated by A. Of course, if we can find out the rule of generating source port for common OS such as Windows and Linux, we can still do it. In addition, we can step on the connection port of Car A through a large number of controlled hosts.该剧讲述因为各种原因而聚集在“三光公寓”的人们，以及他们相互了解、打开心扉、孕育爱情的过程。在独居、单身的时代，通过电视剧展现“家”的新形态。1970年的一个夏日，暗流大队湖边寨生产队的集体户里只有柯碧舟一人在埋头创作他的小说《天天如此》，其他上海知青全都赶场去了。一场突如其来的瓢泼大雨把一个体形颀长、充满生气的姑娘送到了柯碧舟面前——她是偶然跑到这里避雨的，名叫杜见春。由Louis C.K.及Pamela Adlon主创，该剧算是Pamela Adlon半自传性质剧，讲述一位中产单身母亲女演员，如何整天工作之余，还照顾起三个女儿，而且她还得抽空应付住在对面街的英国籍母亲（Celia Imrie饰）。下午。《女儿们的男朋友》4位父亲嘉宾黄日华、秦沛、范志毅、张潮将和MC王子文、范丞丞、张大大、陈铭在演播室共同观察、讨论嘉宾女儿们和男朋友的真实交往过程。